I am a Professor of Philosophy and Chair of the Group in Logic and the Methodology of Science at the University of California, Berkeley.  

• Affiliate of the Center for Human-Compatible Artificial Intelligence

• Affiliate of the Institute for Mathematics and Democracy

• Steering Committee member of the Kavli Center for Ethics, Science, and the Public

• Co-organizer of the workshop series on Social Choice for AI Ethics and Safety

• Member of the Board of Directors of Better Choices for Democracy.

**New**: postdoc opportunities with our ASPAI project.

**New**: AI Risk Reading Group at Berkeley.

For my research papers, please click on the topics in the menu on the left. 

Here is my CV. Here are my current and former students.

You can find physics papers by my father, Dennis Holliday, here.

Need to hold a vote in a committee, club, class, etc.? Try StableVoting.org. 

If you are interested in research on voting, check out the Preferential Voting Tools Python library.